EP0086488A2 - Dispositif de déchargement pour four à tambour rotatif - Google Patents

Dispositif de déchargement pour four à tambour rotatif Download PDF

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Publication number
EP0086488A2
EP0086488A2 EP83101416A EP83101416A EP0086488A2 EP 0086488 A2 EP0086488 A2 EP 0086488A2 EP 83101416 A EP83101416 A EP 83101416A EP 83101416 A EP83101416 A EP 83101416A EP 0086488 A2 EP0086488 A2 EP 0086488A2
Authority
EP
European Patent Office
Prior art keywords
discharge device
rods
rotary tube
screen
bars
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP83101416A
Other languages
German (de)
English (en)
Other versions
EP0086488A3 (en
EP0086488B1 (fr
Inventor
Klaus Dr. Hillekamp
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Deutsche Kommunal Anlagen Miete GmbH
Original Assignee
Deutsche Kommunal Anlagen Miete GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Deutsche Kommunal Anlagen Miete GmbH filed Critical Deutsche Kommunal Anlagen Miete GmbH
Priority to AT83101416T priority Critical patent/ATE41702T1/de
Publication of EP0086488A2 publication Critical patent/EP0086488A2/fr
Publication of EP0086488A3 publication Critical patent/EP0086488A3/de
Application granted granted Critical
Publication of EP0086488B1 publication Critical patent/EP0086488B1/fr
Expired legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
    • C10B47/00—Destructive distillation of solid carbonaceous materials with indirect heating, e.g. by external combustion
    • C10B47/28—Other processes
    • C10B47/30—Other processes in rotary ovens or retorts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
    • B03B9/00—General arrangement of separating plant, e.g. flow sheets
    • B03B9/06—General arrangement of separating plant, e.g. flow sheets specially adapted for refuse
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/18—Drum screens
    • B07B1/22—Revolving drums
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
    • C10B1/00—Retorts
    • C10B1/10—Rotary retorts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B7/00—Rotary-drum furnaces, i.e. horizontal or slightly inclined
    • F27B7/20—Details, accessories, or equipment peculiar to rotary-drum furnaces
    • F27B7/22—Rotary drums; Supports therefor
    • F27B7/224—Discharge ends
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B7/00—Rotary-drum furnaces, i.e. horizontal or slightly inclined
    • F27B7/20—Details, accessories, or equipment peculiar to rotary-drum furnaces
    • F27B7/28—Arrangements of linings
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/52—Mechanical processing of waste for the recovery of materials, e.g. crushing, shredding, separation or disassembly

Definitions

  • the invention relates to a discharge device for a rotary kiln, in particular for pyrolysis of waste, in which the solid residue is divided into two differently fine fractions by means of a sieve.
  • US Pat. No. 1,980,828 describes a plant for degassing coal and other materials containing hydrocarbons, which contains a discharge device of the type described in the introduction. This consists of a thermally insulated chamber in the form of a tube tapering downwards which carries at its lower end an outlet opening through which the fine particles and the dust reach a screw discharge, which feeds these materials into a combustion chamber in which the heating gases used for indirectly heating the rotary kiln are generated.
  • the present invention is therefore based on the object of providing a discharge device of the type described at the outset which, in the pyrolysis of refuse, enables the coarse solids to be separated from the smoldering coke in the still hot residues without a continuous and trouble-free operation the system is at risk.
  • This object is achieved in that a rod screen is attached to the outlet end of the rotary tube, the rods of which are held in such a way that their ends projecting away from the end face of the rotary tube, and that from the exit plane of the rotary tube to the freely projecting ends between Continuous slots are defined for adjacent bars.
  • the slots preferably already start at the outlet end of the rotary kiln, with a corresponding choice of the distance between the bars ensuring that the smoldering coke that is formed falls through between the bars and the coarse solids such as cans, metal parts and stones are retained by the bar screen and by the smoldering coke be separated. Since the coarse solids generally have a higher calorific value than the coke-like residue, less heat has to be dissipated to cool it than when it is still connected to the coarse solids. Furthermore, the coke-like residue is not further crushed by the discharge with the coarse solids due to its separation before the subsequent cooling, so that it can then be more easily separated from the fine inert particles still present in it.
  • the coarse solids are no longer in the smoked coke are contained, it can be carried out dry, for example via a screw discharge. As a result, the coke-like residue can be processed more easily, and when used as a solid fuel it has a higher calorific value.
  • the coarse solids on the other hand, can be discharged in a simple manner by means of a wet deslagger in which they have already been washed.
  • the rod screen can be attached to the rotary tube in a particularly simple manner.
  • the rods can be arranged in such a way that the continuous slots formed between them widen slightly as the distance from the exit plane of the rotary tube increases, so that coarse solids, should these have become jammed between two adjacent rods, by the material that follows safely pushed out to the free end of the bars.
  • this widening may only go so far that the original slot width changes only insignificantly over the length of the bar screen.
  • the bars have a cross-sectional shape and / or are arranged such that the slots formed between two adjacent bars extend from the loading side of the bar grate, i.e. the side on which the solids emerging from the rotary tube reach it, expand to the discharge side.
  • the rods are expediently designed with wedge-shaped cross sections.
  • a design of the rods which is particularly favorable in terms of function and stability provides that they have a rudder blade or paddle-like cross-section, the edges of the rods being chamfered on the loading side and the end regions facing the delivery side having plane-parallel side surfaces.
  • the rods preferably touch a circular arc running concentrically to the longitudinal axis of the rotary tube, an arrangement being particularly favorable in which the rods, at least in their freely projecting area, define a circular cylinder or a circular cone, the axis of symmetry of which is preferably aligned with the axis of rotation of the rotary tube, so that a researcher to this subsequent rod cage .
  • the rods are here oriented such that their longitudinal planes of symmetry extending radially to the axis of rotation D rehrohres or the axis of symmetry of the circular cylinder or circular cone.
  • a bar grate is provided, the bars of which run essentially perpendicular to the bars of the bar screen.
  • the bar grate is preferably essentially flat and expediently slopes downward from the area below the outlet end of the rotary tube in the direction of the free ends of the bars of the bar screen.
  • the bar grate is also advantageous with a device ver see which makes him move back and forth perpendicular to the direction of his bars.
  • the distance between the bars in the bar grate is chosen to be greater than the distance between the bars in the bar screen.
  • a collection and discharge device for the smoked coke is expediently attached, which preferably forms a dry discharge. which is described in detail, for example, in DE-OS 30 05 205 of the applicant.
  • the rod screen can be attached separately from the rotary tube, but it is particularly favorable to connect it to it in a rotationally fixed manner. Since every welding of parts that have already been annealed leads to new tensions and the bar grate, like the rotary kiln, is exposed to considerable temperature fluctuations, one tries to get by without such welding points if possible.
  • the bars are provided with at least one through hole at each of their areas facing the cross section of the delivery side, through which a core can be passed, by means of which the bar screen can be clamped onto the rotary tube on the outside or inside.
  • the rods are expediently held in the desired position on the cores by means of sleeve-shaped spacers.
  • the core is provided at one end with a projection which does not pass through the bores in the rods, a thread being attached to the other end of the core, onto which a screw member can be screwed , which is supported with its free end on the projection.
  • the core is provided at both ends with a thread which in each case extends into the interior of a connecting piece rigidly integrating the two end rods, the ends of the core in this connecting piece by means of Screw connections are clamped.
  • a jam in the bar screen is reliably avoided if it runs towards the free ends of the bars with a slope, that is to say with an angle OC with respect to the horizontal.
  • the gradient preferably corresponds to the inclination of the rotary kiln with respect to the horizontal.
  • the discharge device is designed as a thermally insulated, sealed chamber, into which the free end of the rotary tube projects, but the drive of which is arranged outside the chamber.
  • the chamber advantageously contains in its lower area a dry discharge for the smoked coke and a wet discharge device for the coarse solids.
  • Fig. 1 shows schematically a rotary kiln 1, which a Be Schickungs Scheme 2 upstream and a discharge device 3 is connected downstream.
  • the loading area 2 contains an input funnel 4, which is held rotatably about its longitudinal axis in a storage area 5, which creates a gas-tight seal to the input funnel 4 in a manner not shown.
  • the feed hopper 4 is further provided with flaps, not shown in the drawing, which allow the entry of garbage in the direction of the arrow M.
  • the storage area 5 is provided with a downwardly extending filler neck 6, which opens from above into an input tube 7, which opens with its free end 8 into the interior of the rotary kiln 1 concentrically with its longitudinal axis L-L.
  • Reference number 9 denotes the front area of a slide, not shown, by means of which the waste M introduced via the feed funnel 4 and the filler neck 6 is introduced into the interior of the rotary kiln 1, as indicated by the arrow M1.
  • the rotary kiln 1 consists of a rotary tube 10 which is arranged centrally to the axis LL and which extends over a large area of its longitudinal extent through a heating chamber 11, as a result of which the interior of the rotary tube 10 is indirectly heated.
  • the heating chamber is provided with burners 12 on its underside and on its upper side with a series of outlet openings 13 through which the burner exhaust gases can emerge from the heating chamber 11 as indicated by the arrows A.
  • the longitudinal axis of the rotary kiln passes from the horizontal slightly inclined, advantageously at an angle of 1 ° to 5 °, preferably 2.5 0th
  • the input end 14 of the rotary tube 10 is closed with an annular plate 15 into which a pipe socket 16 is inserted, which loosely surrounds the input tube 7 and at its end is rotatably supported on the input tube 7 about the longitudinal axis LL via a gas-tight bearing 17.
  • the free end 8 of the input tube 7 ra g tein piece over the input end 14 into the interior of the rotary tube 10 in order to prevent that the garbage in the corners between the ring plate 15 and the rotary tube 10 accumulates.
  • the inside of the rotary tube 10 can be provided with internals which bring about a thorough mixing of the waste or any additives. With its end 18 opposite the free end 16, the rotary tube 10 leads freely into the discharge device 3.
  • the discharge device 3 consists of a chamber 25 into which the free end 18 of the rotary tube 10 extends laterally.
  • the chamber 25, into which, as indicated by the reference numeral 26, a suction opening for the carbonization gases formed during the pyrolysis of the garbage in the rotary tube opens, consists of an inner wall 26 which is attached to the free end 18 of the rotary tube 10 and with this rotatable bar screen 27 loosely encloses, the minimum distance between a discharge edge 28 formed by the free ends of the bar screen 27 to the opposite wall area 29, which is indicated in the drawing by the letter c, is greater than the smallest cross-sectional dimension in the loading area 2.
  • the inner wall 26 by means of a seal 30, forms a gas-tight seal with respect to an annular flange 31 fastened on the outside to the free end 18 of the rotary tube 10.
  • the inner wall 26 delimits a funnel-shaped dry discharge 32 for the smoked coke 33 formed in the rotary tube 10 , which accumulates in the funnel-shaped area 34 and is drawn off from the lower end thereof by means of a discharge device, for example by means of a discharge screw 35.
  • the dry discharge 32 has a design as described in the applicant's German patent application P 30 18 572.9-24, to which reference is hereby made.
  • the permanent fill level of the dry discharge 32 with Schwelkoks is chosen such that the Schwelkoks forms a gas-tight plug, the temperature in the upper area of the Schwelkokses is kept so high that the smoldering gases can not condense - generally above 250 ° C - and indeed over a layer thickness over which no diffusion takes place.
  • the discharge edge 28 of the rod screen 27 limits the inner wall 26 to the feed to a wet discharge device 36.
  • the lower ends 37 of the inner wall 26 extend below Surface 38 of a washing and cooling liquid 40 located in a container 39.
  • a conveyor device passes through the container 39, which is indicated schematically in FIG. 1 as a conveyor belt 41, which is conveyed via a roller 42 under the outlet opening of the chamber formed by the lower ends of the inner wall 37 25 passed by and served to remove coarse solids, as indicated by the reference symbol F, after cooling them down with the washing and cooling liquid 40 and cleaning them with them for disposal.
  • a cavity 45 is formed, in which an inlet connector 46 opens at the lower end and an outlet connector 47 opens at the upper end, through which a heating medium enters the cavity 45 and out of it.
  • the exhaust gas A emerging from the heating body 11 through the outlet opening 13 can expediently be used as the heating medium, which, as indicated by the arrow A ', passes into the cavity 45 via the inlet connection 46 and there its residual heat via the inner wall 26 for heating the chamber 25 and of the upper area of the dry discharge 32 and the wet discharge device 36, before it cools further, as indicated by the arrow A2, emerges from the outlet connection 47 and, if appropriate, via a chimney (not shown in more detail) into the open.
  • a flat bar grate 48 is arranged below the bar screen 27, so that it removes the dry discharge 32 covers and runs with a slope towards the entrance to the wet discharge device 36. While the rods of the rod sieve 27 run essentially parallel to the longitudinal axis LL of the rotary tube, the exact construction will be discussed in more detail below, the rods 49 of the rod grate 48 are arranged essentially perpendicularly thereto, that is to say they lie in planes parallel to the end face of the Rotating tube 10 run or are aligned with the discharge edge 28.
  • the rod grate 48 is mounted on eccentric rollers 50 and 51 in such a way that, as indicated by the arrow R, it can be set in a reciprocating motion by a motor 52 via an actuator 53, not shown, in which the eccentric effect causes the Eccentric rollers 50 and 51 and the inclined position of the slatted frame 48 are ejected in the direction of the wet discharge device 36.
  • a preferably pre-comminuted waste M is brought into the input tube 7 via the input funnel 4 and the filler neck 6 and is introduced into the interior of the rotary tube 10 by means of the slide 9, as indicated by the arrow M1, which is passed through the burner 12 is indirectly heated and is set in rotation via the ring gear 23 and the pinion 24. Due to the inclined position of the rotary tube 10 and the continuous rotary movement of the same, the waste migrates continuously, as indicated by the arrow M2, from the input end 14 of the rotary tube 10 to its output end 18, and is pyrolytically decomposed during this progress. This is accompanied by a reduction in volume, which is indicated by a decrease in the filling cone on the underside of the rotary tube 10.
  • the chemical processes involved in pyrolysis and their influence Special temperature levels, internals and additives, as well as the integration of any pollutants that are not the subject of this application, can be carried out in any way.
  • the solid residues emerging from the free end 18 of the rotary tube 10 consist of relatively small-volume and light smoked coke particles which, as indicated by the arrows K , fall into the dry discharge 32 between the rods of the rod screen 27 and between the rods 49 of the rod grate 48.
  • Coarse solids F such as metal parts, stones, cans and the like, are retained by the rod screen 27 and migrate outward along its rods in order to ultimately fall over the discharge edge 28 to the wet discharge device 36.
  • the special design of the rod screen 27, which will be described in more detail below, ensures that the coarse solids F do not jam after they exit the rotary tube 10 and cannot disrupt or interrupt the operation of the system.
  • the coarse solids can also contain elongated parts which, due to the passage through the rotary tube 10, essentially align with its longitudinal axis LL, get into the rod screen 27 and, because of this alignment between the individual rods thereof, together with the coke in the direction of the dry discharge 32
  • the bar grate 48 with its bars 49 running perpendicular to it is provided under the bar sieve 27, which, due to the vibrating action and the gradient on the bar grate 48, causes the elongated solid parts L such as sheets, wires, etc. to enter the wet discharge device 36 promote.
  • the special design of the rod screen 27 further prevents such wires from getting caught in the screen arrangement and jamming and, over time, completely clogging the discharge device.
  • the smoldering gases produced during the pyrolysis process are drawn off as indicated by the arrow S above the outlet 26, the heating of the chamber 25 preventing the latter from cooling below its dew point.
  • the bar screen 27 consists of a plurality of bars 54, which are of identical design.
  • the ends of the rods 54 which face the end face 55 of the rotary tube 10, are fastened to a holder 57 in such a way that they are equidistant from one another.
  • the bars 54 are straight and extend freely from the holder 57 to their free ends 58, with longitudinal slots 59 being formed between the bars 54, which are bounded by two neighboring bars. In this arrangement, it is particularly important that the longitudinal slots 59 run continuously from the end face 55 of the rotary tube 10 to the free end 58 of the rods 54 and do not narrow over the entire length.
  • the rods 54 can be advantageous to design and arrange the rods 54 in such a way that the longitudinal slots 59 are directed towards the discharge edge 28, ie the ends of the Slightly widen the rods to ensure that solids F, which have become jammed in the inner region of the rod screen 27 between two adjacent rods, are safely pushed out to the discharge edge 28.
  • this widening must be kept so small that the "mesh size" of the bar screen 27 does not change noticeably over the length of the bar grate.
  • the holder 57 consists of two band irons 61 and 62, which are at a distance from one another which is equal to or slightly larger than the width thereof with the bars 54 in their other Corresponding recesses 63 and 64 provided on the outer edges are welded such that the outer surfaces of the band irons 61 and 62 are aligned with the outer surfaces 65 of the rods 54.
  • the band irons 61 and 62 contain through bores 66 and 67 in the area between the bars 54, so that they are j as shown in FIG.
  • FIGS. 1 and 2 show a variant of the bar screen 27 shown in FIGS. 1 and 2, in which this is also attached to the inner surface 75 of the rotary tube 10 in the region of its free end 18.
  • the bars 54 of this bar screen have a cross-sectional shape as best seen in FIG. 5.
  • An end region 77, running parallel to it, on the discharge side of the bar grate forms this opposite end of the bars.
  • the rods are constructed symmetrically with respect to a plane LS-LS penetrating the middle region 76 and the end region 77 vertically and centrally, ie the plane LS-LS forms the longitudinal symmetry plane of the rods.
  • the maximum extension of the bars perpendicular to the longitudinal plane of symmetry LS-LS is considerably smaller than that in this direction.
  • Side surfaces 78 and 79 run together in a wedge shape from the top, whereby after a steeper neck region 80, 81 they extend into parallel side wall parts 82 and 83, which are approximately the same length as the area with the wedge-shaped side faces 78, 79 and which are delimited at their lower end by the end area 77.
  • beveled edges 84 and 85 are provided, which run approximately at an angle of 45 ° to the longitudinal symmetry plane LS-LS.
  • the inclination of the side surfaces 78 and 79 is preferably chosen such that, as indicated by the dashed line to the right of FIG. 5 by the dashed line to the left, a straight extension of the surfaces 78 and 79 down at the transition between the end region 77 and the mutually parallel side wall parts 82 and 83 open would.
  • FIG. 5 would represent a true-to-scale reproduction of the “paddle-shaped” cross-sectional configuration. As shown in FIG.
  • the rods 54 can have an identical cross-sectional configuration over their entire length. At one end they contain two through bores 86 and 87 which are offset with respect to one another in the longitudinal direction and penetrate the side wall parts 82, 83 which run parallel to one another and run perpendicular to the longitudinal symmetry plane LS-LS.
  • the rods 54 are chamfered from the loading side to the discharge side, i.e. the straight central region 76 ends in front of the lower end region 77 and an obliquely extending end face 88 is created which, as can be seen from FIG. 3, is to prevent the degassed waste coming from the left in FIG. 3 from jamming at the end faces 88 , or that solids get caught there or jam.
  • the rods 54 are assembled into a circular cylindrical rod-cage-like arrangement, which forms the rod sieve 27, which is inserted into the free end 18 of the rotary tube and connected to it in a rotationally fixed manner.
  • the individual rods 54 are attached via their bores 86 to souls 89 and 90, which consist of a circular-cylindrical, flexible material.
  • Sleeve-shaped spacers 91 the length of which is approximately twice as large as the maxi The width of the bars 54 r are applied to the souls. 89 and 90 between two adjacent bars 54.
  • the spacers 91 cause the rods 54 to take equidistant distances from one another and to run radially with their longitudinal plane of symmetry LS-LS to the axis of symmetry SS of the rod screen 27.
  • the slots formed between the individual rods 54 therefore expand in a wedge shape from the loading side of the rod screen 27 to the discharge side thereof.
  • the rods 54 held together by the cores 89 and 90 are fastened in the interior of the free end 18 of the rotary tube 10 by spreading the ends of the cores 89 and 90 apart, without this being necessary in the wall of the rotary tube 10 which is the case in the embodiment of FIG 2 necessary holes 70, 71 would be necessary.
  • one end of the cores 89 and 90 is provided with a projection or a rivet head 92, while the other end carries an external thread 93.
  • a nut 94 with a rear cap-like and rounded projection 95 is rotatably supported along the external thread 93, the nut 94 being supported on a plate 96 plugged onto the corresponding free end of the core 89 or 90.
  • the nut 94 is locked in the assumed position, for example by caulking or a weld indicated by the reference number 97 .
  • the inner wall 75 of the rotary tube 10 is next inside protruding tabs 98 are provided, which are attached such that one core 89 comes to lie in relation to the longitudinal extension of the rotary tube 10 and the other core 90 lies behind the tabs.
  • cover plates 99 can be provided between the individual rods, which, with their end faces facing the interior of the rotary tube 10, are aligned with the end end faces 88 of the rods 54, the souls 89 and 9 g cover the spacers 91 and the tabs 98, and up to a maximum reach the end face 55 of the rotary tube 10. This effectively prevents possible sticking or jamming of solids on the holder of the rod screen 27.
  • FIG. 7 shows a further exemplary embodiment for rods 54, as can be used in the embodiment of the rod screen shown in FIGS. 3 to 5.
  • These rods correspond to the rods shown in FIG. 6, with the exception that the parallel side wall parts 83a do not extend over the entire length of these rods, but rather after they have emerged from the rotary tube 10, as indicated by reference numeral 100, so that those from there end up to the free ends 58 of the protruding areas of the rods only have the area delimited in the cross-section like a rudder blade by areas 76, 78, 79, 80, 81, 84, 85 and an unspecified lower area sen.
  • FIGS. 8 to 12 A further embodiment of the rod screen 27 is shown in FIGS. 8 to 12, the views in FIGS. 8 to 12 corresponding to the views in FIGS. 3 to 7 and the same parts being given the same reference numerals.
  • the essential difference of the embodiment shown in Figures 8 to 12 is that here the rod screen 27 is clamped outside on the free end 18 of the rotary tube 10, while in the embodiment of FIGS. 3 to 7, however, at the appropriate place inside in the Rotary tube 10 was clamped.
  • the clamping of the rod screen 27 on the outside of the end of the rotary tube 10 has the considerable advantage that the inner wall 75 of the rotary tube 10 passes unimpeded up to its end face 55, and that by suitable design of the rods 54, which will be discussed in more detail below, can be achieved that the rectilinear central regions 76 on the top of the individual rods are aligned with the inner surface 75.
  • the risk of a wire or other coarse solid getting caught or jamming at the transition from the rotary tube 10 to the rod cage 27 is therefore completely avoided in this embodiment.
  • the rods 54 are identical in the region protruding from the end face 55 of the rotary tube 10 and leading to the free ends 58 to the rods of the embodiment described above.
  • the rods 54 are modified only in the area in contact with the rotary tube 10 and for attachment to this serving area, where they consist of the wall-like area lying between the two parallel side wall parts 82 and 83, while the "rudder-blade-like" Area that is delimited by areas 76, 78, 79 and 84 and 85 is missing there.
  • the surface of the rods is formed in this area, which carries the through bores 86 and 87, by a straight surface 101 running parallel to the rectilinear central area 76, which comes to rest against the outer wall 102 of the rotary tube when the rod screen 27 is clamped onto the rotary tube 10 on the outside.
  • the rudder blade-shaped area ends adjacent to the surface 101 in an end surface 103 with which the individual rods come to rest against the end surface 55 of the rotary tube 10.
  • the height of the end face 103 ie the distance between the surface 101 and the straight central region 76 on the upper side measured in the direction of the longitudinal symmetry plane LS-LS, corresponds to the thickness d of the rotary tube. 10.
  • the bars 54 are clamped, as in the exemplary embodiment described above, via cores 89 and 90 passed through their bores 86 and between them sleeve-shaped spacers 91 pushed onto the cores 89 and 90, only the connection of the free ends of the cores 89 and 90 in one modified form.
  • the two ends of the souls 89 and 90 are each provided with an external thread 104 or 105, which extends through the last rod at the respective end.
  • These last two rods, which are designated 54a and 54b in FIG. 10 are held at the desired distance from one another by a connecting piece 106 which is rigidly connected, preferably welded, to both rods 54a and 54b.
  • All parts located inside the chamber 25, in particular the rod screen 27, are made of high-strength, acid-resistant materials which are not attacked by the waste materials, nor by the gaseous or solid pyrolysis products, and which have the necessary strength.
EP19830101416 1982-02-16 1983-02-14 Dispositif de déchargement pour four à tambour rotatif Expired EP0086488B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT83101416T ATE41702T1 (de) 1982-02-16 1983-02-14 Austragsvorrichtung fuer einen drehrohrofen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3205366A DE3205366C2 (de) 1982-02-16 1982-02-16 Austragsvorrichtung für einen Drehrohrofen
DE3205366 1982-02-16

Publications (3)

Publication Number Publication Date
EP0086488A2 true EP0086488A2 (fr) 1983-08-24
EP0086488A3 EP0086488A3 (en) 1985-10-09
EP0086488B1 EP0086488B1 (fr) 1989-03-22

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Application Number Title Priority Date Filing Date
EP19830101416 Expired EP0086488B1 (fr) 1982-02-16 1983-02-14 Dispositif de déchargement pour four à tambour rotatif

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EP (1) EP0086488B1 (fr)
AT (1) ATE41702T1 (fr)
DE (1) DE3205366C2 (fr)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0210658A1 (fr) * 1985-08-01 1987-02-04 Metallgesellschaft Ag Appareil pour séparer les trop gros grains du matériau de déchargement chaud produit dans un four rotatif de réduction directe de minerais de fer
EP0265421A2 (fr) * 1986-10-24 1988-04-27 VOEST-ALPINE Aktiengesellschaft Crible à barreaux
EP0565954A1 (fr) * 1992-04-13 1993-10-20 Siemens Aktiengesellschaft Dispositif de carbonisation
WO1995002465A1 (fr) * 1993-07-13 1995-01-26 Maschinenfabrik Bezner Gmbh & Co. Kg Dispositif de traitement de melanges de materiaux recyclables
EP0780481A1 (fr) * 1995-12-15 1997-06-25 ALUMINIUM RHEINFELDEN GmbH Procédé et installation de récupération d'aluminium à partir de déchets et de résidus
DE19601224A1 (de) * 1996-01-15 1997-07-17 Siemens Ag Austragsvorrichtung
WO1999018170A1 (fr) * 1997-10-02 1999-04-15 Mannesmann Ag Procede et installation pour l'extraction d'une fraction de sous-produit de carbonisation contenant du carbone
EP0952391A2 (fr) * 1998-04-17 1999-10-27 Dr. Schoppe Technologie GmbH Procédé et dispositif de combustion complète des combustibles en morceaux contenant des cendres
FR2791281A1 (fr) * 1999-03-23 2000-09-29 Thide Environnement Installation de traitement de solides carbones issus d'un four de thermolyse de dechets urbains et/ou industriels, et dispositif de separation d'une telle installation
EP1201772A1 (fr) * 2000-10-31 2002-05-02 Kawasaki Steel Corporation Procédé et appareil de déchargement d'un produit réduit d'un four à sole mobile
WO1999061172A3 (fr) * 1998-05-22 2002-10-03 Siemens Ag Dispositif et procede de criblage de matiere solide
ITTO20101043A1 (it) * 2010-12-23 2012-06-24 Sea Marconi Technologies Di Vander Tumiatti S A S Impianto modulare per la conduzione di procedimenti di conversione di matrici carboniose
AU2015207970B2 (en) * 2012-03-14 2016-12-01 Mitsubishi Heavy Industries, Ltd Coal dry distillation device
WO2022090572A1 (fr) * 2020-11-02 2022-05-05 Improbed Ab Dispositif et procédé de tri d'un flux particulaire
CN114621774A (zh) * 2022-04-18 2022-06-14 东营派克赛斯石油装备有限公司 一种基于石油制备的带倾斜碳化室的炼焦炉

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DE4142107A1 (de) * 1991-12-19 1993-06-24 Luthner Metall Recycling Verfahren zur wiedergewinnung von metallwerkstoffen aus altmaterial
DE19528765C2 (de) * 1995-08-04 1999-03-25 Siemens Ag Austragseinrichtung für eine Schweltrommel für Abfall
JP5506841B2 (ja) * 2012-03-12 2014-05-28 三菱重工業株式会社 石炭乾留装置
DE102014003806A1 (de) 2014-03-15 2015-09-17 ingitec Engineering GmbH Anlage und Verfahren zur Direktpyrolyse von Biomasse
CN104190687A (zh) * 2014-07-31 2014-12-10 三零一（深圳）环保科技有限公司 可连续排渣及排气的耐高温箱体及其回转式气化分解装置
CN109186251A (zh) * 2018-09-26 2019-01-11 浙江凯色丽科技发展有限公司 珠光颜料煅筛一体式管式回转炉

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GB230632A (en) * 1924-03-22 1925-03-19 Drakes Ltd Improvements appertaining to mechanism for screening or sifting coke, coal or like granulated substances
DE805956C (de) * 1949-04-30 1951-06-11 Brueckenbau Flender G M B H Siebanlage
FR1404728A (fr) * 1964-06-22 1965-07-02 Traitement des cendres brutes provenant d'installations d'incinération d'immondices
DE1551841A1 (de) * 1966-05-09 1970-05-06 Gen Thermique S A Verbrennungsvorrichtung fuer Haus- und Industrieabfall
DE2033535A1 (de) * 1969-07-09 1971-01-21 Kebe Anstalt fur Vertrieb von AnIa gen fur Kehrichtbeseitigung Vaduz Rohrförmiger mit geneigter Achse rotierender Ofen zur Veraschung von stadtischen Abfallen und fur andere Ver wendungszwecke
DE2011728A1 (de) * 1970-03-12 1971-09-30 Krauss MafTei AG, 8000 München Verfahren und Drehrohrofen zum Ver brennen von Mull
FR2098378A1 (fr) * 1970-07-13 1972-03-10 Monsanto Co
US3848744A (en) * 1972-12-04 1974-11-19 J Flaherty Green pellet sizing screen
DE3018572A1 (de) * 1980-05-14 1981-11-19 Deutsche Kommunal-Anlagen Miete GmbH, 8000 München Pyrolyseofen, bei dem die pyrolysegase zur verbrennung dem brenner des pyrolyseofens zugefuehrt werden, und verfahren zur zufuehrung von pyrolysegas zur verbrennung in einem brenner eines pyrolyseofens in welchem das pyrolysegas entstanden ist

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US1389231A (en) * 1915-03-30 1921-08-30 Drakes Ltd Mechanism for screening or sifting granulated substances
GB230632A (en) * 1924-03-22 1925-03-19 Drakes Ltd Improvements appertaining to mechanism for screening or sifting coke, coal or like granulated substances
DE805956C (de) * 1949-04-30 1951-06-11 Brueckenbau Flender G M B H Siebanlage
FR1404728A (fr) * 1964-06-22 1965-07-02 Traitement des cendres brutes provenant d'installations d'incinération d'immondices
DE1551841A1 (de) * 1966-05-09 1970-05-06 Gen Thermique S A Verbrennungsvorrichtung fuer Haus- und Industrieabfall
DE2033535A1 (de) * 1969-07-09 1971-01-21 Kebe Anstalt fur Vertrieb von AnIa gen fur Kehrichtbeseitigung Vaduz Rohrförmiger mit geneigter Achse rotierender Ofen zur Veraschung von stadtischen Abfallen und fur andere Ver wendungszwecke
DE2011728A1 (de) * 1970-03-12 1971-09-30 Krauss MafTei AG, 8000 München Verfahren und Drehrohrofen zum Ver brennen von Mull
FR2098378A1 (fr) * 1970-07-13 1972-03-10 Monsanto Co
US3848744A (en) * 1972-12-04 1974-11-19 J Flaherty Green pellet sizing screen
DE3018572A1 (de) * 1980-05-14 1981-11-19 Deutsche Kommunal-Anlagen Miete GmbH, 8000 München Pyrolyseofen, bei dem die pyrolysegase zur verbrennung dem brenner des pyrolyseofens zugefuehrt werden, und verfahren zur zufuehrung von pyrolysegas zur verbrennung in einem brenner eines pyrolyseofens in welchem das pyrolysegas entstanden ist

Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0210658A1 (fr) * 1985-08-01 1987-02-04 Metallgesellschaft Ag Appareil pour séparer les trop gros grains du matériau de déchargement chaud produit dans un four rotatif de réduction directe de minerais de fer
EP0265421A2 (fr) * 1986-10-24 1988-04-27 VOEST-ALPINE Aktiengesellschaft Crible à barreaux
EP0265421A3 (fr) * 1986-10-24 1989-01-18 VOEST-ALPINE Aktiengesellschaft Crible à barreaux
EP0565954A1 (fr) * 1992-04-13 1993-10-20 Siemens Aktiengesellschaft Dispositif de carbonisation
US5409577A (en) * 1992-04-13 1995-04-25 Siemens Aktiengesellschaft Carbonization apparatus
WO1995002465A1 (fr) * 1993-07-13 1995-01-26 Maschinenfabrik Bezner Gmbh & Co. Kg Dispositif de traitement de melanges de materiaux recyclables
EP0780481A1 (fr) * 1995-12-15 1997-06-25 ALUMINIUM RHEINFELDEN GmbH Procédé et installation de récupération d'aluminium à partir de déchets et de résidus
DE19601224A1 (de) * 1996-01-15 1997-07-17 Siemens Ag Austragsvorrichtung
WO1999018170A1 (fr) * 1997-10-02 1999-04-15 Mannesmann Ag Procede et installation pour l'extraction d'une fraction de sous-produit de carbonisation contenant du carbone
EP0952391A2 (fr) * 1998-04-17 1999-10-27 Dr. Schoppe Technologie GmbH Procédé et dispositif de combustion complète des combustibles en morceaux contenant des cendres
EP0952391A3 (fr) * 1998-04-17 2000-03-01 Dr. Schoppe Technologie GmbH Procédé et dispositif de combustion complète des combustibles en morceaux contenant des cendres
EP1348492A1 (fr) * 1998-05-22 2003-10-01 Siemens Aktiengesellschaft Installation de pyrolyse pour déchets avec tamis pour résidus solides
WO1999061172A3 (fr) * 1998-05-22 2002-10-03 Siemens Ag Dispositif et procede de criblage de matiere solide
FR2791281A1 (fr) * 1999-03-23 2000-09-29 Thide Environnement Installation de traitement de solides carbones issus d'un four de thermolyse de dechets urbains et/ou industriels, et dispositif de separation d'une telle installation
EP1201772A1 (fr) * 2000-10-31 2002-05-02 Kawasaki Steel Corporation Procédé et appareil de déchargement d'un produit réduit d'un four à sole mobile
US6872074B2 (en) 2000-10-31 2005-03-29 Jfe Steel Corporation Method for discharging reduced product from a movable-hearth furnace and a discharging device
US7141205B2 (en) 2000-10-31 2006-11-28 Jfe Steel Corporation Method for discharging reduced product from a movable-hearth furnace and a discharging device
US7473393B2 (en) 2000-10-31 2009-01-06 Jfe Steel Corporation Method for discharging reduced product from a movable-hearth furnace and a discharging device
ITTO20101043A1 (it) * 2010-12-23 2012-06-24 Sea Marconi Technologies Di Vander Tumiatti S A S Impianto modulare per la conduzione di procedimenti di conversione di matrici carboniose
WO2012085880A2 (fr) 2010-12-23 2012-06-28 Sea Marconi Technologies Di Vander Tumiatti S.A.S. Installation modulaire permettant de réaliser des procédés de conversion de matrices carbonées
WO2012085880A3 (fr) * 2010-12-23 2012-08-23 Sea Marconi Technologies Di Vander Tumiatti S.A.S. Installation modulaire permettant de réaliser des procédés de conversion de matrices carbonées
AU2015207970B2 (en) * 2012-03-14 2016-12-01 Mitsubishi Heavy Industries, Ltd Coal dry distillation device
WO2022090572A1 (fr) * 2020-11-02 2022-05-05 Improbed Ab Dispositif et procédé de tri d'un flux particulaire
CN114621774A (zh) * 2022-04-18 2022-06-14 东营派克赛斯石油装备有限公司 一种基于石油制备的带倾斜碳化室的炼焦炉

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EP0086488A3 (en) 1985-10-09
DE3205366C2 (de) 1984-06-07
ATE41702T1 (de) 1989-04-15
DE3205366A1 (de) 1983-09-08
EP0086488B1 (fr) 1989-03-22

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